Today's module-init-tools 3.13-1 upload negatively affects (#628844) installing new kernels, reverting to 3.12-1 from testing fixes the issue; this bug results in lots of (firmware related) noise and long install times, but has no critical side effects.

Given that module-init-tools updates are absolutely critical for upcoming linux 3.0 versions, we strongly recommend against putting module-init-tools on hold.